Keown was with Mayweather in a Grand Rapids, Mich. Foot Locker when the boxer discreetly showed him his bank account receipt and said, “One account, baby.”

Keown writes:

“I had heard that Floyd does his banking the old-fashioned way: going inside, talking to a real-life teller. He is also known to be a big proponent of maximum liquidity. Still, the amount of digits spread across the bottom-right corner doesn’t seem possible.”

Mayweather was the highest-earning athlete in the world from 2011 to 2012, making $US85 million, according to Forbes.

It’s unclear what his exact net worth is, but it’s fair to assume that $US123 million is a good chunk of it.